example3_with_conversion_operators.cpp

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#include <iostream>

class MyClass {
public:
    explicit operator bool() const {
        return true;
    }
};

int main() {
    MyClass obj;
    // if (obj) {  // Error: Implicit conversion to bool is not allowed
    if (static_cast<bool>(obj)) {  // OK: Explicit conversion is required
        std::cout << "Object is true" << std::endl;
    }

    return 0;
}